Product derived from vegetable proteins



' tone, stron citizen of the United UNITED, STATES PATENT OFFICE.

ZENQ OSTENBEBG, 01? BAN JOSE, CALIFORNIA.

PRODUCT DERIVED FROM VEGETABLE PROTEINS.

No Drawing.

To all whom it may concern.

Be it known that I Zeno Osrsnnnno, a

tates and resident of San Jose, in the county of saute Clara and Stateof California, have invented a certain new and useful Product Derivedfrom Vegetable Proteins, of which the following is a specification. Thesubstances known as gliadin and zem have long been recognized asimportant constituents of the gluten of certain cereals as wheat, ryeand corn, res ectively, and havo been extracted in the 01m of glutinousmasses.

Those portions of vegetable proteins above referred to, or in broadterms, the prolamins of vegetable proteins, are insoluble in water andare insoluble in pure alcohol, but

they may be dissolved in a suitable mixture of alcohol and water withina range of about to 80% of alcohol to form thick viscous solutions. Theyare insoluble in solutions of salts but are soluble in dilute acid oralkali.

When these substances, that is the so called prolamins, are dissolved insuitable solvents, as ethyl alcohol, or in dilute acid or alkali, theyform thick viscous solutions which I have found may be treated in such amanner that they may be used in the manufacture of filaments (artificialsilk), films, sheets, foil, lacquer, cements, binders for variousmaterials, paint vehicles, paper size artificial ivory, onyx, horn, etc.

, These various manufactures may be formed or shaped from the viscoussolution by means of any of the wellknown mechanical roce'sses and theformed substance soli ified simply 'by drying, by coagulating insuitable solutions of salts or other electrolytes, solutions ofcolloids, various li uids in which gliadm or zein are not solub e, suchas aceabove 60 preferably at 100 (3., by pure water or,pure alcohol, butwithout the treatment hereinafter described the rolamins form hard,brittle masses when ry, which become sticky and expanded and distortedwhen wet, and are therefore useless for the purposes'above outlined. M

I have found that they may be" rendered less brittle, that is, tough andflexible by means of small amounts of various substances such'as fats,wanes, resins, oils, s oa s, sulfonated. fats or oils, sugars, and thebig or polyatomic alcohols, such asgl yoerol, sugars Specification ofLetters Patent.

alcohols, etc., or by heating,

Patented Sept. 23, 1919.

Application flied February 12, 1817. Serial No. 148,048.

of the mono-, di-, and poly-saccharid groups, phenolic substances suchas phenols, naphthols, etc, terpemes and related compounds, such ascamphor, borneol, turpentine oils,

etc. Some of these various substances'may be added directly to thesolution, especially in the manufacture of artificial silk and films ofvarious kinds, or, in some cases the articles may be impregnated withthe toughening agent after formation. The product maybe rendered veryresistant to water by means of formaldehyde or other aldehydes or bymeans of heat or both.

The filaments made from gliadin and zein solutions (either alone or whenboth solut ons are combined) resemble the genuine Silk produced by thesilk-worm more closel than any other artificial silk, both in phys1- caland chemical properties, and also in appearance, being stron clear andbrilliant.

The forms such as laments and films are easily bleached after beinformed or the bleachin agent may be ad ed before coa latlon. he solutionmay be easily clar' ed by centrlfugalization or filtration or both. Thematerials thus obtained are non-infiammable; upon ignition they merelypufi' up and char;

Having thus described, my invention, what I c aim as new and desire tosecure by Letters Patent, is:--

1.- A non-thermoplastic mixture of a vegetable rolamin and a tougheningagent.

2. non-thermoplastic mixture of a vegetable prolamm and a tougheningagent, rendered insoluble.

3. A non-thermoplastic mixture of 9. Vega table prolamin and a to hen acut rengeld insoluble by the ddditi dh of an alde- 4. non-thermoplasticmiiture ofa vegetable prolamm and a ton hening'a t, renin 70% alcoh land a toughening agent, and

rendered inso-uble.

7. A non-thermoplastic mixture of that portion of vege in, 70% alcoholand a ton hen'ing dered insoluble by the .a dition o an aldetableproteins that is soluble 8. Anon-thermoplastic mixture of that portionof vegetable protems that IS soluble in 70% alcohol and a tougliiening aent, rendered insolu ble b the a ition 0 an aldehyde and the app icationof heat. i

9. A non-thermoplastic mixture of glladm and a toughening agent.

10. A non-thermoplastic mixture of l adin and a toughening agent,rendere insoluble. 11. A non-thermoplastic mixture of gliadin and a touhening agent, rendered insoluvegetable prolamin and a toughening agent,

solidified and rendered insoluble.

15. A non-thermoplastic mixture of a 18. A mixture of a vegetableprolamin I and a sulfonated oil, rendered insoluble.

19. A non-thermoplastic mixture of -a vegetable prolamin and atoughening agent, solidified by heat.

20. Products formed from v etable prolamins in solution and subjecte tothe action of a toughening agent.

21. Products formed from ve etable prolamins in solution and subjectedto the action of a toughening agent and rendered resistant to water.

In testimony whereof I have hereuntoaffixed my signature this 3rd day ofFebruary,

ZENO OSTENBERG.

LCorrctibn in Letters Patent No 1,31 6,854-

11. is horeby certified btmt in better: Patent. No; 1,316,854, grantedSeptember 23,

10l9,upon fihe'application of Zono Osbenberg, of SanJose, California,for an improvomont in fProducts Derived-from Vegetable Proteins," anerror appears In tho printed spocifioafion requiring correction asfollovfs: Page 1, line 59, for the yo-rd read icrpma; and thot the saidLetters Patent should be read with th'm corro ction therein than thesome may conform to the IBQOl'd of the case in the Patent Oflice.

Signed "and woiad this 3d (by of Fohruary, A. D., 1920.

M. H. COULSTON,

Acting Commissioner of Patents.

